Actions take place in 2011. Five years have passed since the second disaster, which overshadowed the events of April 1986. The zone is subject to increasing frequency of emissions, which shift anomalous fields and open roads to previously inaccessible places. Clans are fighting for key positions and new territories. Stalkers die, but new ones immediately appear. Scientific expeditions from the “West” come to the zone, seeking to unravel the strange mystery of this zone.